jerome



2 Sheets-#heet l.

(No Model.) v

S. B JEROME.

PMBMBNT.

(No Model.) 2 Sheets-Sheet 2. S. B. JEROME.

' PAVEMENT. No. 41 61. P tented Oct. 8, 1889.

i vm ll. is]

A TOBA/EYS,

WIM/8858."

ff/@M N. Psmas. mbuwmmr. wnnsnm n c.

PATENT SAMUEL B. JEROME,

OF NEI/V YORK, N. Y.

PAVEMENT.

SPECIFICATION forming part of Letters Patent No. 412,261, dated October8, 1889.

Application iiled November 23, 1888. Serial No. 291,645. (No model.)

` To @ZZ whom it may concern:

Be it known that I, SAMUEL B. JEROME, a

resident of the city, county, and State of New York, have invented anImproved Pavement, of which the following is a specification. The objectot my invention is to provide a pavement for streets, roads, rive., thatwill be simple in construction, readily placed in position and removed,and durable in use.

The invention consists in the details of improvement and combinationsof1 parts, that will be more fully hereinafter set forth.

Reference is to be had to the accompanying drawings, forming part ofthis speciiication, in which- Figure l is a vertical cross-section of aroad-bed from curb to curb, showing my improved pavement; also insection in position on said road-bed. Figs. 2 and 3 are similar viewsshowing modied constructions of my improved pavement. Fig. a is a detailsectional view of the joint connecting the sections of pavement shown inFigs. 2 and 3. Figs. 5, 6, and 7 are perspective views of modified formsof pavement. Figs. S and 9 are vertical cross-sections of a street orroadway from curb to curb, showing various applications of my improvedpavement. Figs. 10 and 11 are details of modifications.

In carrying out my invention I take blocks A, of wood or other desirablematerial, of any desired size `and dimensions, and perforate them, as ata, said perforations extending through said blocks from side to side, asshown, so that these perforations shall be aligned when the blocks areplaced on e against the other. I preferably make the perforations @nearthe centers of the blocks A. Through the perforations a., in a certainnumber of the blocks A, Ipass a rod or bar B. One or more of the ends ofthe bar B is provided with threads, which receive nuts b. When theblocks A are in position upon the bar B, the nuts b are drawn up tightuntil the blocks on said bar arerigidly held together in a compactstructure, which I term a section of pavement. The rods B may be of suchlength as to extend nearly across the roadbed about from curb to curb D,as in Figs. 1, 8, and 9, whereby a section of pavement of aboutV thewidth of the street is obtained.

E are separate blocks similar to the blocks A, that rest against thecurb D, and against which the end blocks of the sections abut. The innerface of each block E may be recessed; or instead of the outer end of thesection of pavement to receive the projecting end of the rod B, and alsothe nut b, so that the blocks E and the end blocks A of the sections maycome close together.

When the sections A B extend across the street from curb to curb, theyshould have the proper curvature of the road-bed. In order to give thiscurvature to the sections, I taper the blocks A slightly from theirupper edges downward, so that when the nuts h on the rods B are drawn uptight and the blocks pressed close together the desired curvature willbe given to the section. This is clearly illustrated in Fig. l.

If preferred, instead of tapering all the blocks A, as stated, some onlymay be tapered, or matter may be introduced between the blocks A, neartheir upper ends, to bring their lower ends closer together.

In laying my im proved pavement above described upo'n a road-bed F, saidroad-bed will tiret be prepared with the proper curvature, and then thesections of pavement laid upon the road-bed side by side and closetogether. The road-bed F may be prepared in any suitable manner; butgood results will be obtained by first making a layer of broken stonesto secure proper drainage, then a covering of coarse gravel, and then atop dressin gof smaller gravel, the latter to be tamped under eachsection as'laid. The curb of the street will act as an abutment for thesections of pavement, and the sections when curved, as before shown,Will act somewhat like a truss in resisting the pressure of heavy loads,dac.

Vhen wood blocks are used, they may be treated with creosote, or in anyother suitable manner lto withstand the action of the elements.

YVith my improved pavement the surface of .the street will be keptsubstantially smooth at all times, as one block A will not fall orbepressed below the surface of the adjoining blocks, even if the bedbeneath such block should become depressed, because the rod B, passingthrough the blocks will hold each block in position and up to the levelof those adjoining.

ICO

Instead of the sections A B extending entirely across the street fromcurb to curb, said sections may be shorter than the width of the street,two, three, or more sections being used to lilll up the distance fromcurb to curb. This is shown in Figs. 2 and 3 of the drawings. In Fig. 2two sections A B are shown extending from curb to curb, and in Fig. 3three sections are shown. When two or more sections A B are used toextend from curb to curb, I provide a separate block G between eachsection. This block is perforated or recessed from side to side toreceive the projecting ends of the rods B and nuts b from the adjoiningsection. I. prefer to place in the perforation CZ of the block G an ironor other tube e, so as to strengthen the block G and take up any wearthat maybe caused by the projecting ends of the rods B and the nuts b.Theabove construction is shown in detail in Fig. 4.

In laying my improved pavement in short sections from curb to curb ablock E is rst placed against one curb. A section A B is next placed inposition against said block E. A block G is next placed against the endof the section A B, the projecting end of the rod B being -passed withinthe aperture or recess in the block G. The next sections are then laidin similar manner across the street with blocks G between them untilenough have been placed in position to reach the opposite curb D, ablock E being placed between the end of the last section and the curb D,as shown clearly in Figs. 2 and 3.

With the construction of pavement shown in Figs. 2 and 3 only a portionof the roadway or pavement need be removed when it is desired to repairor otherwise arrange gas and sewer pipes, telegraph and other wires,&c., beneath the surface of the street-that is to say, the section A Bof pavementv directly above such pipes, wires, dac., may be removed,

leaving the rest of the pavement at the side or sides of such sectionsintact, so that traiic will not be interrupted.

In Figs. l, 2, and 3 each section of pavement is described as of thewidth of only one block A; but these sections may be made in any desiredwidth and length.

In Fig'. 5 the section is shown as of the width `of four blocks A, whichsection may be of any desired length. In this section the rods B arepassed through the apertures in the blocks A, as described withreference to Figs. 1, 2, and 3, and two or more of these sets orsections of blocks having the rods passed through them are placed sideby side, and the ends of the rods B passed through apertures in-a metalor other plate or bar H at both ends of the section, and the nuts b thendrawn up, whereby the blocks Awill be held rigidly together along thelength of the bars B, as before shown, and will be held side by side toform awide section by the plates H. This will be clearly understood byreferring to Fig. 5 of the drawings.

In the gures of the drawings, heretofore described, the upper ends of.the .blocks A have been referred to and shown as being flush; but, ifdesired, the pavement maybe made uneven, as in Fig. 6, so that thehorses feet may vhave points to catch upon, as in ordinary stonepavements for roadways, for the safety and security of horses frominjury by slipping.

Vhen preferred or desired, long sections of pavement may be' made instraight lines, not having the arched or curved form, and laidlengthwise of thestreet. This construction is shown in Fig. 7. In thisligure the sides of the blocks A are straight and the rod B passedthrough them, as before stated, so that when the nuts b are drawn up theblocks will be held firmly together, but will not take the curved form,the section thereby being made the only covering necessary for thetrenches,

as the sections are extremely strong, and byv having the form of a lowarch, as shown, will support great weights. The ends of the sections ofpavements A B may rest upon supports I or embankments at the sides ofthetrench. Uprights J may be placed in the trenches at proper intervals toassist in supporting the pavement where it crosses the trench. Trenchescovered by my improved pavement will be accessible at all times.

If desired, my improved pavement maybe used to cover subways forrailroad-trains, pipes, wires, and the like, as shown in Fig. 9. In thiscase the form of pavement having the low arch will be used, extendingentirely across the street from curb to curb and resting upon theabutment or supports I, as shown. Longitudinal stringere L, supported byuprights J, may be used to help support the pavement between the curbsD, as shown in Fig. 9. Suspension tie-rods M could also be usedextending from the end of the pavement, whereby a truss is formed.

This pavement will be the only essential covering for the subway, andwill support heavy loads at all times.

Rails for horse-cars may be laid upon my improved pavement, and groovesout in the pavement to admit the rail, so that it need not extend abovethe surface of the pavement.

If one of the blocksA should become broken,

or if it is desired to replace a block A for any cause, the section ofpavement containing such broken or otherwise damaged block will belifted -from its place, and such block re- IIO moved from its rod B. Theother blocks still remaining on the rod will be pushed along said roduntil they are in contact and the new block placed upon the end of therod, and the nuts drawn up tight to return the section of pavement toits prior condition. The section of pavement will then be placed inposition in the roadway.

Instead of the bar B passing through the blocks, it may be sunk intorecesses on their sides, as in Fig. 10, or placed against their facesand secured by staples or nails, as in Fig. il.

Having now described my invention, what I claim is- 1. Apavementconsisting of Wedge-shaped blocks A A, united into a continuous curvedsection by a bar B, substantially as described.

2. A pavement, substantially as herein d escribed, consisting` of theperforated Wedgeshaped blocks A and the bar B, passingthrough saidblocks, said blocks being held tightly together on the bar B in a curvedline, substantially as described.

3. The wedge-shaped blocks A, having apertures a., said blocks beingplaced side by side with their apertures aligned, combined with the rodB, having the nut Z2, said rod passing through the apertures in theblocks A, and the nut b drawn up to hold the blocks A rigidly togetherupon the rod B and in a section having a curved line, substantially asdescribed.

4. The blocks A, having apertures a, the apertures in the blocks A beingaligned,said

blocks tapering` from their upper edges downward on both sides, combinedwith the rod B, having the end nut l), the rod B being passed throughthe apertures in the blocks A and the nut b drawn up, whereby the blocksAare rigidly held together and formed into an arch, substantially asdescribed.

5. The blocks A, having apertures a, that are aligned with each other,and the rod B, passing through said apertures in said blocks and havingnut h for holding the blocks on the rod, combined with the recessedblocks E, that rest against the curb and receive the ends of the rod B,substantially as described.

6. The two sections of pavement herein described, each consisting ofblocks A, placed side by side and having a rod B passed through them,and the nuts ZJ holding said blocks on said rods, combined with theintermediate rccessed or apertured block G between said two sections ofpavement, the ends of the rods B being passed into the aperture in saidblock G, whereby the sections of pavement are connected together,substantially as described.

'7. A pavement consisting of the perforated blocks A, the upper surfaceof one block being lower than the upper surface of an adjoining block,and the bar B, passing through said blocks, said blocks being heldtightly together on said bar, substantially as described.

SAMUEL B. JEROME.

Witnesses:

HARRY M. TURK, T. FRED. BOURNE.

